Determination of S.N.F. in milk and unsweetened condensed milk from refractive index measurements
- 1 February 1963
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Dairy Research
- Vol. 30 (3) , 411-417
- https://doi.org/10.1017/s0022029900033823
Abstract
Refractive index measurements of separated, ultracentrifuged and dialyzed ultracentrifuged milk were used to obtain values of 0.207, 0.187 and 0.140 ml/g for the specific refraction increments of the casein complex, soluble proteins and lactose, respectively. For milk samples from individual Friesian cows, the standard deviation of the differences between solids-not-fat (S.N.F.) determined from refractive index and by the gravimetric method was 1.8% of the mean S. N. F. The predicted linear relationship between refractive index and the concentration of S. N. F. expressed as w/v was confirmed for condensed separated milk.This publication has 5 references indexed in Scilit:
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